The Rome giants are also aware of mounting interest from across the continent, with Liverpool and City among the Spain-born teenager's admirers.

The 19-year-old's representative Ulisse Savini says negotiations have been smooth and that he expects the youngster to finalise his new deal next week.

He told Radio Mana Mana: "We are very close, I see no difficulty. We need to fix the little things, but in reality it is just bureaucracy. The renewal will be signed after Easter, the deal was never in doubt, it was always very smooth."

Diao, who is in his maiden season as a first-team player at Lazio, has scored four goals and set up two in 20 Serie A appearances.